Beryl is a beryllium aluminum silicate that occurs in every color of the rainbow. When green, it's an emerald. When blue, it's aquamarine. When pink, it's morganite. There is a raspberry red variety found in Utah called Bixbite. Yellow is heliodor and colorless is goshenite. There is a very rare and costly variety termed riesling beryl, that can be described as pale green colour, with a warm golden yellow flash. Two unusually dark blue types of beryl have been found as well, Maxixe beryl and True Blue beryl. Maxixe beryl fades with exposure to light, True Blue beryl does not. Beryl had been used as a physician's tool and gazing stone since ancient times. Those beliefs persist today. Beryl is metaphysically attributed with the ability to cure a number of intestinal and stomach ills, such as nausea, ulcers, and seasickness.